Satellites (P5)

Uses of satellites:

• Telecommunications
• Weather prediction
• Military uses
• Satellite Navigation systems
• Scientific research

What keeps a satellite in orbit:

Satellites are kept in orbit by gravity

Inverse Square Law:

The amount of gravity attracting an object decreases the further out the object is

Sun <----> Earth (F)

Sun <--------> Earth (F/4)

If you double the distance the gravitational force divides by four

Gravitational force between ogjects depends on their mass and distance between them

At three times the distance the gravity has a ninth of its strength

Gravitational force is inversely proportional to the square of the…